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The clinical application value of multi-slice spiral CT enhanced scans combined with multiplanar reformations images in preoperative T staging of rectal cancer

机译：多层螺旋CT增强扫描结合多平面重建图像在直肠癌术前T分期中的临床应用价值

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This study aims to evaluate the diagnostic accuracy and clinical application value of multi-slice spiral CT (MSCT) enhanced scans combined with multiplanar reformations (MPRs) images compared with postoperative pathological results in preoperative T staging of rectal cancer.One hundred sixty-eight consecutive patients with rectal cancer were admitted in our hospital between January 2013 and October 2018. Conventional MSCT plain scans, multi-phase dynamic contrast-enhanced scans, and MPRs were performed in all patients before surgical operation. The preoperative T staging of the rectal cancer lesions was evaluated using MSCT enhanced scans combined with MPRs, which was verified by postoperative pathological results. The diagnostic accuracy of MSCT enhanced scans combined with MPRs in evaluating T staging of the rectal cancer lesions were analyzed by χ2 test and Kappa test.Compared with postoperative pathology, T staging using MSCT enhanced scans combined with MPRs had overall accuracy of 85.7%. Consistency between MSCT enhanced scans combined with MPRs and postoperative pathological staging was effective for T staging (Kappa = 0.658, χ2 = 4.200, P = .122).Conventional MSCT enhanced scans combined with MPRs are simple and feasible. It is consistent with the pathological diagnosis of evaluating T staging in the rectal cancer lesions. It can provide reliable imaging evidence for the preoperative evaluation of primary rectal cancer, especially in patients with magnetic resonance imaging (MRI) contraindications, or in grass-roots hospitals due to lack of MRI equipment.
机译：本研究旨在评估多层螺旋CT（MSCT）增强扫描结合多平面重建（MPR）图像与直肠癌术前T分期的术后病理结果的诊断准确性和临床价值。连续168例直肠癌患者于2013年1月至2018年10月期间在我院收治。术前所有患者均进行了常规MSCT平扫，多阶段动态对比增强扫描和MPR。使用MSCT增强扫描结合MPR评估直肠癌病变的术前T分期，并通过术后病理结果进行验证。通过χ 2 检验和Kappa检验分析了MSCT增强扫描结合MPR对直肠癌T分期的诊断准确性。与术后病理比较，MSCT增强扫描结合MPR对T分期的诊断价值总体准确性为85.7％。 MSCT增强扫描结合MPR与术后病理分期之间的一致性对T分期有效（Kappa = 0.658，χ 2 = 4.200，P = .122）。常规MSCT增强扫描结合MPR既简单又容易可行。这与评估直肠癌病变中T分期的病理诊断是一致的。它可以为原发性直肠癌的术前评估提供可靠的影像学证据，尤其是在有磁共振成像（MRI）禁忌症的患者中，或者由于缺乏MRI设备而在基层医院中。

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